Tips & Resources chapter updates

[abogdanoski]

• Add a bit of intro on where in the exercise these tips are relevant, e.g. “Reproducible workflows are based on three tools and practices, including standardized folder structure, literal programming, and version control. Here is a brief overview of what each of these entails based on a chapter from Christensen et al, 2019.”
• 8.2: Same as above, this needs a bit of introduction and explanation of how these links can be used as part of SSRP.
• 8.2.1: We should add these resources to the BITSS Resource Library and just link to the library from here (many of them are there already).